Quantifying the Amount of Bleeding and Associated Changes in Intra-Abdominal Pressure and Mean Airway Pressure in Patients Undergoing Lumbar Fixation Surgeries: A Comparison of Three Positioning Systems
Asian Spine Journal
;
: 199-204, 2016.
Artigo
em Inglês
| WPRIM
| ID: wpr-132124
ABSTRACT
STUDY DESIGN:
Prospective, randomised controlled, single centre study of 45 patients posted for two level lumbar fixation surgery in the prone position.PURPOSE:
To compare intra-abdominal pressure (IAP), mean airway pressure mean airway pressure and blood loss during the spine surgery in prone position using three different positioning systems. OVERVIEW OF LITERATURE Studies have correlated IAP with the amount of perioperative bleeding. However, IAP and airway pressures while assessing the bleeding comparing two or more prone positioning systems are unclear.METHODS:
This prospective study was conducted on a cohort of 45 patients scheduled for two-level lumbar fixation. Patients were randomly allocated to a spine table, Wilson's frame, and thermomodulated pads. Bladder pressure as an indicator of IAP, mean and peak airway pressures, and blood loss were monitored.RESULTS:
IAP increased whenever patient position was changed to prone .The increase in pressure was more in the Wilson's frame group but was statistically significant only on prolonged positioning. Adopting the prone position always increased the mean airway pressure, but the increased was significant only in the Wilson's frame group. Mean airway pressure decreased in the spine table group and was statistically significant. The blood loss in the spine table group was significantly less as compared to the other groups.CONCLUSIONS:
Positioning on a spine table results in less blood loss and low mean airway pressure. The Wilson's frame results in high IAP, increased mean airway pressure, and more blood loss. The thermomodulated frame increases mean airway pressure and produces a moderate increase in IAP and airway pressure.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Coluna Vertebral
/
Bexiga Urinária
/
Estudos Prospectivos
/
Estudos de Coortes
/
Decúbito Ventral
/
Hemorragia
Tipo de estudo:
Ensaio Clínico Controlado
/
Estudo de etiologia
/
Estudo de incidência
/
Estudo observacional
/
Fatores de risco
Limite:
Humanos
Idioma:
Inglês
Revista:
Asian Spine Journal
Ano de publicação:
2016
Tipo de documento:
Artigo
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